On September 30, 2026, California Governor Gavin Newsom signed AB 1604, establishing new restrictions on bisphenols in thermal receipt paper. 

California is cracking down on all bisphenols as an entire chemical class. It is important to understand how two distinct California regulations affect your business:

1. Current Prop 65 Requirement (Active Now): Bisphenol S (BPS) is officially listed as a toxicant under Proposition 65. Any California business using receipt paper containing BPS must display a Prop 65 warning label.
2. New AB 1604 Statewide Ban (Effective January 1, 2029): California will outright prohibit the sale, distribution, or manufacture of paper receipts containing any intentionally added bisphenols, including BPS. To stay compliant, businesses must transition to Non-Phenol Thermal Receipt Paper – manufactured without BPA, BPS, or any other phenol-based developers.

While the deadline to switch to non-phenol is in 2029, California businesses face immediate legal risk today under Proposition 65, where BPS is actively targeted by enforcement groups – making an early transition the smartest move.

What This Means for Your Business

Ongoing Prop 65 enforcement means California businesses should act now to eliminate legal exposure. Taking action early ensures smooth supply chains, prevents penalties, and keeps your equipment running seamlessly. Recommended next steps include:

• Reviewing your current receipt paper inventory to verify whether your stock contains BPS or other phenols.
• Working with your paper supplier to transition your orders to certified non-phenol alternatives ahead of the deadline.
• Testing new paper rolls with your existing thermal receipt printers to ensure performance and print quality.
• Educating your teams on upcoming state compliance requirements.

POS Supply Solutions Is Here to Help

All of POS Supply’s thermal receipt paper rolls are already 100% BPA-free. We established this standard across our product lines to maintain safer workplaces and support evolving customer and state standards.

To help businesses comply with California's 2029 bisphenol ban and avoid Prop 65 liability, we offer a complete line of Non-Phenol Thermal Paper Rolls in top-selling sizes, including 3 1/8" x 230’ and 2 1/4" x 50’, as well as many ATM, kiosk, and gas pump roll sizes. Formulated without BPS or any other phenol-based developers, these rolls deliver reliable print quality while keeping your business fully compliant.

If you need help making the switch, give our team a call at 888-431-5800. We’ll help you find the right non-phenol compatible paper for your setup.

Plan Ahead to Stay Compliant

Transitioning early protects your business, eliminates Prop 65 risk, and avoids last-minute supply chain headaches. Beyond California and Washington, proposed legislation in states like New York and New Jersey indicates that phenol receipt regulations will only continue to grow nationwide.

Key Takeaways: California's AB 1604 & Bisphenol Restrictions

• 2029 Bisphenol Ban: Effective January 1, 2029, California law expands paper receipt restrictions to ban all bisphenols (including BPS).
• Switch to Non-Phenol Paper: All POS Supply paper is already BPA-free, but California businesses must upgrade to non-phenol paper (manufactured without BPS or other phenols) to meet the new requirement.
• Immediate Prop 65 Exposure: With BPS listed as a toxicant under Proposition 65, private enforcement groups are actively targeting businesses using BPS-coated paper, making an immediate transition a smart choice.
• Non-Phenol Alternatives Available: POS Supply Solutions offers a full selection of Non-Phenol Thermal Paper Rolls made without BPA, BPS, or any phenol-based developers – ensuring top print performance and printer compatibility.
• Proactive Transition: Switching early removes legal risks, ensures regulatory compliance, and protects your staff and customers.